A earl and leader of a battalion of soldiers in the Duke of Lorraine’s brigade, fighting for the Roman army.
Earl Ethelwold led his soldiers into a trap set by Sir Gawaine and Sir Florence in north Italy. The soldiers were killed and Ethelwold fled the field.
Named in Malory’s version of the Roman War, he seems to correspond to Earl Antele of the Alliterative Morte Arthure.
Source
Le Morte Darthur | Sir Thomas Malory, 1469-1470